Home / 42,746.81-64,121.30-20,252.22

Finding the Fourth Proportional to 42,746.81, 64,121.30 and 20,252.22

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Solution

The fourth proportional to 42,746.81, 64,121.30 and 20,252.22 is: 30,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,746.81 : 64,121.30 = 20,252.22 : x
  2. Step 2: Convert to fraction form
    42,746.81/64,121.30 = 20,252.22/x
  3. Step 3: Cross multiply
    42,746.81x = 64,121.30 × 20,252.22
  4. Step 4: Simplify right side
    42,746.81x = 1,298,598,484.46
  5. Step 5: Solve for x
    x = 1,298,598,484.46/42,746.81
  6. Step 6: Final answer
    x = 30,378.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.